Glee Music Spoilers: Britney Spears Edition! First Listen and Full Song List From Season 4, Episode 2: “Britney 2.0” — Leaked

Glee's second Britney Spears tribute is just days away! Season 4, Episode 2: “Britney 2.0” airs this Friday, and Glee has released previews of all but one of the songs featured on the episode. Take a look at the full track list, then listen to the songs below. Which of this season's sexy Britney hits is your favorite?